Part of the 12v CXT cordless platform, the PV301D is a compact sander and polisher which can run on any Makita 12v CXT battery. It has a brushless motor and two speed settings, with variable speed control and a lock on switch. The tool is restart protected so it won't start up unexpectedly if the switch is left in the "on" position while changing over a battery. Features & Benefits Variable speed controlMechanical 2-speed controlConstant speed controlBrushless motorTrigger lockLock-on switch to reduce user fatigueAnti-restart functionErgonomic soft grip SpecificationsBattery Voltage: 12vBattery Type: Makita CXT Lithium IonPad/Disc Diameter (Hook & Loop type): 80 mmPad/Disc Diameter (Twist on/off type): 50 mmBacking Pad Diameter (Hook & Loop type): 75 mmBacking Pad Diameter (Twist on/off type): 46 mmNo Load Speed (Sanding): 0 - 9500 rpmNo Load Speed (Polishing): 0 - 2800 rpmVibration K factor: 1.5 m/sec²Vibration: Sanding: 2.5 m/sec²